88 lines
3.2 KiB
Dart
88 lines
3.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:provider/provider.dart';
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import 'package:fuel_tax_tracker/models/vehicle.dart';
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import 'package:fuel_tax_tracker/screens/vehicle_detail_screen.dart';
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import 'package:fuel_tax_tracker/services/app_state.dart';
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/// Covers the "modern navigation" swipe added to the single-vehicle
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/// receipt page: it's a PageView over every vehicle, starting on whichever
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/// one was tapped — sliding left/right moves to the next/previous vehicle,
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/// same as swiping between MainShell's bottom-nav tabs.
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void main() {
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final vehicleA = Vehicle(id: 'a', vin: 'VINAAAAAAAAAAAAAA', nickname: 'Truck', updatedAt: DateTime.utc(2026, 1, 1));
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final vehicleB = Vehicle(id: 'b', vin: 'VINBBBBBBBBBBBBBB', nickname: 'Van', updatedAt: DateTime.utc(2026, 1, 1));
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final vehicleC = Vehicle(id: 'c', vin: 'VINCCCCCCCCCCCCCC', nickname: 'Sedan', updatedAt: DateTime.utc(2026, 1, 1));
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Future<void> pumpDetail(WidgetTester tester, AppState appState, String vehicleId) async {
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await tester.pumpWidget(
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ChangeNotifierProvider.value(
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value: appState,
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child: MaterialApp(home: VehicleDetailScreen(vehicleId: vehicleId)),
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),
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);
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}
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testWidgets('starts on the requested vehicle, not necessarily the first in the list',
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(tester) async {
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final appState = AppState()
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..isLoading = false
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..vehicles = [vehicleA, vehicleB, vehicleC];
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await pumpDetail(tester, appState, 'b');
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expect(find.widgetWithText(AppBar, 'Van'), findsOneWidget);
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});
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testWidgets('a right-to-left swipe advances to the next vehicle', (tester) async {
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final appState = AppState()
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..isLoading = false
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..vehicles = [vehicleA, vehicleB, vehicleC];
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await pumpDetail(tester, appState, 'a');
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expect(find.widgetWithText(AppBar, 'Truck'), findsOneWidget);
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await tester.fling(find.byType(PageView), const Offset(-400, 0), 1000);
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await tester.pumpAndSettle();
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expect(find.widgetWithText(AppBar, 'Van'), findsOneWidget);
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});
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testWidgets('a left-to-right swipe goes back to the previous vehicle', (tester) async {
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final appState = AppState()
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..isLoading = false
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..vehicles = [vehicleA, vehicleB, vehicleC];
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await pumpDetail(tester, appState, 'c');
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expect(find.widgetWithText(AppBar, 'Sedan'), findsOneWidget);
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await tester.fling(find.byType(PageView), const Offset(400, 0), 1000);
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await tester.pumpAndSettle();
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expect(find.widgetWithText(AppBar, 'Van'), findsOneWidget);
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});
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testWidgets('swiping does not go past the last vehicle', (tester) async {
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final appState = AppState()
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..isLoading = false
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..vehicles = [vehicleA, vehicleB];
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await pumpDetail(tester, appState, 'b');
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await tester.fling(find.byType(PageView), const Offset(-400, 0), 1000);
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await tester.pumpAndSettle();
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expect(find.widgetWithText(AppBar, 'Van'), findsOneWidget, reason: 'stayed on the last page');
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});
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testWidgets('a single vehicle has nothing to swipe to and just shows itself', (tester) async {
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final appState = AppState()
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..isLoading = false
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..vehicles = [vehicleA];
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await pumpDetail(tester, appState, 'a');
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expect(find.widgetWithText(AppBar, 'Truck'), findsOneWidget);
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});
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}
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